linux-kernel - [PATCH net-next v3] net: ena: Fix using plain integer as NULL pointer in ena_init_napi_in

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Message-ID: <20200720075614.35676-1-wanghai38@huawei.com>
Date:   Mon, 20 Jul 2020 15:56:14 +0800
From:   Wang Hai <wanghai38@...wei.com>
To:     <joe@...ches.com>, <shayagr@...zon.com>, <gtzalik@...zon.com>,
        <saeedb@...zon.com>, <zorik@...zon.com>, <davem@...emloft.net>,
        <kuba@...nel.org>, <sameehj@...zon.com>
CC:     <netdev@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: [PATCH net-next v3] net: ena: Fix using plain integer as NULL pointer in ena_init_napi_in_range

Fix sparse build warning:

drivers/net/ethernet/amazon/ena/ena_netdev.c:2193:34: warning:
 Using plain integer as NULL pointer

Reported-by: Hulk Robot <hulkci@...wei.com>
Signed-off-by: Wang Hai <wanghai38@...wei.com>
Suggested-by: Joe Perches <joe@...ches.com>
Acked-by: Shay Agroskin <shayagr@...zon.com>
---
v1->v2:
 Improve code readability based on Joe Perches's suggestion 
v2->v3:
 Simplify code based on Joe Perches's suggestion
 drivers/net/ethernet/amazon/ena/ena_netdev.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/amazon/ena/ena_netdev.c b/drivers/net/ethernet/amazon/ena/ena_netdev.c
index 91be3ffa1c5c..3eb63b12dd68 100644
--- a/drivers/net/ethernet/amazon/ena/ena_netdev.c
+++ b/drivers/net/ethernet/amazon/ena/ena_netdev.c
@@ -2190,14 +2190,13 @@ static void ena_del_napi_in_range(struct ena_adapter *adapter,
 static void ena_init_napi_in_range(struct ena_adapter *adapter,
 				   int first_index, int count)
 {
-	struct ena_napi *napi = {0};
 	int i;
 
 	for (i = first_index; i < first_index + count; i++) {
-		napi = &adapter->ena_napi[i];
+		struct ena_napi *napi = &adapter->ena_napi[i];
 
 		netif_napi_add(adapter->netdev,
-			       &adapter->ena_napi[i].napi,
+			       &napi->napi,
 			       ENA_IS_XDP_INDEX(adapter, i) ? ena_xdp_io_poll : ena_io_poll,
 			       ENA_NAPI_BUDGET);
 
-- 
2.17.1